Tranquility City is an online game on the Harmony blockchain that offers players the opportunity to interact, trade, and have fun. The game has multiple districts, each with unique features and real estate that players can buy with LUMEN, the in-game currency and governance token. The game is designed as a play-to-earn metaverse, with mini-games that allow players to earn in-game rewards. LUMEN will be used for in-game voting and available for staking. The team has already achieved several milestones, including the launch of the testnet game, and the mainnet minting of the real estate NFTs, which have sold out. The game is infused with community suggestions and democratic ideals.